4549849 has 2 divisors, whose sum is σ = 4549850. Its totient is φ = 4549848.

The previous prime is 4549841. The next prime is 4549859. The reversal of 4549849 is 9489454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2999824 + 1550025 = 1732^2 + 1245^2 .

It is a cyclic number.

It is not a de Polignac number, because 4549849 - 2³ = 4549841 is a prime.

It is a super-2 number, since 2×4549849² = 41402251845602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4549841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2274924 + 2274925.

It is an arithmetic number, because the mean of its divisors is an integer number (2274925).

Almost surely, 2^4549849 is an apocalyptic number.

It is an amenable number.

4549849 is a deficient number, since it is larger than the sum of its proper divisors (1).

4549849 is an equidigital number, since it uses as much as digits as its factorization.

4549849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 43.

The square root of 4549849 is about 2133.0375055306. The cubic root of 4549849 is about 165.7037465340.

It can be divided in two parts, 45 and 49849, that added together give a palindrome (49894).

The spelling of 4549849 in words is "four million, five hundred forty-nine thousand, eight hundred forty-nine".